baber/WOPTO huggingface dataset:
Patent GB-1203960-A (GB)
Title: Preparation of nitroimidazole carbamates
Inventor: VERDI VINCENT FRANK
IPC: C07D233/92
Filed: 1967-12-22
Abstract: 1,203,960. Preparation of nitro-imidazole carbamates. MERCK & CO. Inc. 22 Dec., 1967 [6 Jan., 1967], No. 58317/67. Heading C2C. A (4 or 5)-nitro-imidazol-2-yl C 1-4  alkyl carbamate is prepared by reacting a 2-hydroxy C 1-4  alkyl-(4 or 5)-nitroimidazole with an alkali metal cyanate in liquid HF. 2 - Hydroxymethyl - 4(5) - nitroimidazole is prepared by nitration and subsequent hydrolysis of 2-acetoxymethyl-imidazole acetic acid salt, prepared in turn from 2-hydroxy-methylimidazole and acetic anhydride. It is converted by methylation to 1-methyl-2-hydroxy - methyl - 5 - nitro imidazole. 1 - Methyl- 2- (1<SP>1</SP> - hydroxyethyl) - 5 - nitro - imidazole is prepared from 1 - methyl - 2 - formyl - 5 - nitroimidazole and methyl magnesium iodide. Specifications 1,153,347, 1,203,958, 1,201,269 and 1,201,270 are referred to.
Patent GB-1460745-A (GB)
Title: Pulping machines
IPC: B02C7/04
Filed: 1973-12-17
Abstract: 1460745 Fruit pulping machines TOBACCO RESEARCH & DEVELOPMENT INSTITUTE Ltd 17 Dec 1973 [17 Jan 1973 7 May 1973 31 Aug 1973] 58434/73 Heading A4C [Also in Division B2]  A fruit pulping machine for pip-bearing fruit comprises two vertical discs, one disc 7 being fixed and the other disc 4 rotating about a horizontal axis, an inlet through disc 7 eccentric to the axis for introducing fruit to be pulped between the discs, a casing enclosing at least the outer peripheries of the discs and an outlet from the outer periphery of the casing, and in which each disc carries pegs 11 that project among the pegs of the other disc, the distance between pegs and the distance between the tips of the pegs and the opposed disc being so chosen that each peg passes any other peg and the other disc at a distance greater than the greatest expected pip dimension, and secondly in that the inlet is positioned on the fixed disc 7 at a position where pegs on the rotating disc 4 carry the fruit from the inlet to the periphery The pegs are round cylindrical and their diameter decreases from the centre towards the periphery of the discs. In Fig. 4 the pegs are inclined towards the disc periphery, those on disc 4 also being inclined against the direction of rotation of disc 4 while those pegs on disc 7 are inclined in the direction of rotation of disc 4, each peg making an angle of 75 degrees with the disc on which it is mounted. Other peg configurations are described and the pegs need be neither inclined nor all of the same length.
Patent GB-1325517-A (GB)
Title: Apparatus for exerting pressure on a body
IPC: F01C9/00
Filed: 1971-12-17
Abstract: 1325517 Welding by pressure EUROPEAN ATOMIC ENERGY COMMUNITY 17 Dec 1971 [18 Dec 1970] 58726/71 Heading B3R Apparatus for exerting pressure on a body, particularly in a high temperature diffusion welding process carried out in a vacuum or shielding gas, comprises an inner part 1 having an open ended cavity for holding the work, an outer part 2, 3, at least partly enclosing the inner part, the parts being rigidly connected together at one end and in contact at an inclined surface at the other end adjacent the opening of the cavity the inner and outer parts 1, 3 being of materials of different coefficients of expansion. Thus on a change in temperature relative movement occurs at the inclined surface causing a wedging action whereby pressure is exerted on a workpiece or workpieces held in the cavity. The inner part 1 has slots 7, to facilitate its closing upon the work. The material of greater coefficient may be used for the inner or outer part, the direction of inclination of the inclined surfaces being selected accordingly. The parts may be of other than circular cross-section, e.g. square or rectangular or designed for plate like articles. It is envisaged that the desired pressure could be produced by shrinking the relevant parts of the apparatus. An example is given in which a plug and bush, both of sintered aluminium powder material were welded together by heating to 600‹ C. under vacuum.
Patent GB-1200800-A (GB)
Title: Improvements in hydraulic fluid pressure control system
IPC: F02K1/76
Filed: 1967-12-29
Abstract: 1,200,800. Hydraulic systems; jet propulsion nozzles. GENERAL ELECTRIC CO. Dec. 29, 1967 [Dec. 29, 1966], No.59000/67. Headings F1P and F1J. An hydraulic system particularly for controlling the nozzle area flaps 20 and reverse thrust flaps 42 of a gas turbine engine comprises a high flow pump 59 primarily for actuating the thrust reverser actuators 43 and thus normally by-passed to the pump inlet 57 through a valve 64, and a low flow pump 58 for operating the nozzle area actuators 22, this pump being supplemented by the output of the pump 59 if the flow from the pump 58 alone is insufficient. During steady state operation a large proportion of the output from both pumps 58, 59 is by-passed by the valve 64 back to the pump inlets 56, 57 and the remaining flow passes through bleed passages in the actuator's pistons to provide a cooling flow therethrough. The smaller portion of the output from the low flow pump 58 is supplied through a passage 62 connected to a spool valve 24 controlling the flow through lines 26, 27 to the nozzle area actuators 22 and the return from the latter to a return passage 37,38. The by-passed output from the pump 58 is returned to the inlet 56 through a passage 63 and ports 69 in the by-pass valve 64. The ports 69 are controlled by a valve element 65 subjected at one end to the pressure in the supply passage 62 and at the other to the combined effect of a spring 73 and the pressure in a passage 76 connected by a selector valve 77 to whichever of the lines 26, 27 is at the greater pressure. The by-passed flow from the pump 59 is via ports 96 and a passage 98 to a control throttling valve 93 which directs this flow through a chamber 108 and throttle by-pass ports 118 to a return passage 121 connected to the pump inlet 57. When the flow required for operation of the nozzle area actuators 22 is more than can be met by the pump 58 alone, the pressure falls in the supply passage 62 causing the by-pass valve ports 69 and 96 to be closed by the element 65, whereby the output from the high flow pump 59 passes through a check valve 87 to combine with the output from the pump 58 in the supply passage 62. The flow from the pump 59 not by-passed by the valve 64 flows through the throttle valve 93 via a passage 91, and is throttled by passage through ports 109 before passing through a supply passage 112 to a control valve 44. The control valve 44 causes operation of the thrust reverser actuators 43 and during normal flight allows the throttled flow to the actuators. Throttle valve 93 includes a spool 104 responsive to the pressure in the supply passage 112 through a restrictor 130 in a passage 117. Operation of the reverse thrust valve 44 also opens a valve 124 to collapse the pressure in the passage 117 whereby the spool 104 moves to the right covering the throttle by-pass ports 118 so that the full output of the pump 59 is available for operation of the actuators 43. A pressure relief valve 126 is provided in the supply passage 62.
Patent GB-1384300-A (GB)
Title: Lampshade and lamp stand combination
IPC: F21V1/22
Filed: 1972-12-29
Abstract: 1384300 Lampshade and lampstand combination G LEIBERMAN 29 Dec 1972 [2 Feb 1972] 59961/72 Heading F4R In a lampshade and lampstand combination, a dome-shaped lampshade 10 includes a reentrant portion forming an integral fitting 12 which releasably engages the lamp socket of the stand 18. The fitting, which also forms a bulb enclosure, comprises a cylindrical wall 13, a tapered portion 15 with apertures 17, and a collar portion 16 having a bottom face seating against a ledge 26 on the lamp socket. The shade may be moulded of plastics material.
Patent GB-1220339-A (GB)
Title: Electromagnetic valve
IPC: G09F9/37
Filed: 1967-12-08
Abstract: 1,220,339. Valves. TRANS-LUX CORP. 8 Dec., 1967 [12 Dec., 1966], No. 59967/68. Divided out of 1,220,338. Heading F2V. An electromagnetic valve comprises a fluidtight chamber 42 arranged to have fluid under a pressure greater than atmospheric supplied thereto, a jet nozzle 90 connected into the chamber, a valve 78 to control a passage into the jet, electromagnetic means 61, 62 to control the valve, a resilient armature 77 connected to the valve, and armature tensioning means 68, 69 to increase the force with which it urges the valve towards the passage as the spacing between the armature and the electromagnet is decreased. The valve is of a plastics material and the armature is secured to a leaf-spring 65 anchored to a post 66. A curved end 68 to the leaf-spring and an adjustable stop-pin 69 form the tensioning means. An iron support plate 77<SP>1</SP> connects the cores 73, 74 of the electromagnets. A number of valves, for separate or simultaneous operation, may be mounted in a common chamber with a single air inlet. The valve may be used in the display system described in Specification 1,220,338.
Patent GB-1275019-A (GB)
Title: Photochromatic borate glass without silicon dioxide
Inventor: RENTSCH JUERGEN
IPC: C03C3/19
Filed: 1970-12-18
Abstract: 1275019 Phototropic glass JENAER GLAS. WERK SCHOTT & GEN VEB 18 Dec 1970 60181/70 Heading C1M Phototropic borate glass containing silver halide and no silicon dioxide consists essentially of, in percentages by weight:- B 2 O 3  45 - 70 P 2 O 1 - 12  Me<SP>I</SP> 2 O 5 - 20 Me<SP>II</SP>O 0 - 15 Al 2 O 3  5 - 15 ZrO 2  1 - 12 Ag 0À1 - 1 Cl 0À3 - 2 CuO 0À01 - 0À05 in which Me<SP>I</SP> signifies at least one of Li, Na, K, Rb and Cs, Me" signifies at least one of Mg, Sr and Ba and wherein up to half of the chlorine is replaceable by bromine and/or iodine. Up to 0À05% of at least one element of Ti, V, Cr, Mn and Co in an electro-positive valency state may be added to colour the initial glass and up to 0À1% of S, Se and/or Te may be added as sensitizers or, for the coloured glass, as modifying additions. Examples are given. Specification 1,274,780 is referred to.
Patent GB-1250026-A (GB)
Title: Traffic light system
IPC: G08G1/08
Filed: 1968-12-20
Abstract: 1,250,026. Road signals for controlling traffic. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Dec., 1968 [21 Dec., 1967], No. 60725/68. Heading G4Q. In a road traffic control system having two R.C. circuits R 1 C 1 , R 2 C 2  with different time constants interconnected by a rectifying element D 1  which becomes forward conducting when the charge acquired by the first capacitor C 1  substantially equals that acquired by the second capacitor C 2 , the capacitors C 1 , C 2  are discharged at the beginning of the green light period and the capacitor C 1  in the circuit of the lower time constant is maintained in a discharged state for a determined period of time, after which this capacitor C 1  starts to charge but is discharged instantaneously at the passage of a vehicle passing a vehicle sensing device on the road to which the green signal has been given, whereas the other capacitor C 2  is charged constantly so that the green prolongation time, after the minimum green time, is terminated when the voltage across the capacitor C 1  attains a given value in accordance with the traffic volume. As shown capacitance C 2  is higher than C 1  and contacts I close to instantaneously discharge C 1  when a vehicle is detected. When the voltage across C 1  becomes greater than C 2 , diode D conducts and the charge rate increases to R 1  (C 1  + C 2 ) so that if no vehicle passes, the extension of the green time is quickly terminated.
Patent GB-681027-A (GB)
Abstract: 681,027. Calculating-apparatus. NATIONAL CASH REGISTER CO. June 22, 1948 [Dec. 6, 1947], No. 7292/50. Divided out of 680,992. Drawings to Specification. Class 106 (i). A calculating-machine having several addsubtract totalizers is provided with common overdraft mechanism which can operate in conjunction with any of the totalizers so that when a total is to be taken from an overdrawn totalizer the overdraft mechanism converts the overdraft into a true negative amount, the true amount then being printed. In the embodiment described, the total is taken in complementary form from the overdrawn totalizer and subtracted from a normally empty separate totalizer during the first cycle of a two-cycle overdraft total-taking operation, the true total being taken and printed from this separate totalizer during the second cycle. The mechanism may operate automatically to take the negative total when the carriage moves into certain columns, but certain totalizers may have means to inhibit this automatic total-taking when the total is negative. Manual means may also be provided to stop automatic total-taking when desired. A signal is provided for each totalizer to show the occurrence of an overdraft therein. All the descriptive matter is contained in Specification 680,992. Specifications 631,379 and 681,028 also are referred to.
Patent GB-700577-A (GB)
Abstract: 700,577. Pit props. PROGRES CHARBONNIER PROCHAR SOC. COOPERATIVE. Aug. 17, 1951 [Sept. 9, 1950], No. 19424/51. Class 20 (2) A telescopic pit prop has an upper part 2 clamped in a lock 3 on the lower part 1 by means of a lever 10 having a head 11 formed at its front with a boss 12 with a convex surface 12a adapted to fit into a concavity on a pressure piece 8, the rear side 11a of the head 11 also being of convex form and adapted to fit into a concavity in the back 5 of the lock 3. The centres of curvature o, o<SP>1</SP> of the convex surfaces 11a, 12a are spaced apart by a distance which is small in relation to the length of the lever 10. Preliminarv locking may be effected by a horizontal wedge 9 engaging a second pressure piece 7 on the other side of the part 2. Stops 14, 15 on the pieces 7, 8 serve to limit their downward movement with the part 2. The lever turns about the centre O of the head 11, a slight displacement of the short lever arm o-o' being sufficient to force the pressure piece 8 firmly against the part 2. The lever 10 is actuated by means of a screw 16 bearing against the part 1 and passing through a nut 17 bearing against the free end of the arm 10. To facilitate collapse when the lever has been brought to the desired locking position, a locking bar 18 is interposed between the part 1 and the lever 10 whereupon the screw 16 and nut 17 are removed, collapsing being effected by means of a lever 21 acting on the locking bar 18 as shown in Fig. 4. Alternatively collapsing may be effected by knocking out the wedge 9. Instead of the members 16, 17, 18, a transverse wedge interposed between the lever 10 and part 1 may be used to actuate the lever 10.
Patent GB-737056-A (GB)
Abstract: 737,056. Indicating- and recording-apparatus. FOXBORO CO. Aug. 27, 1953 [Sept. 2, 1952], No. 23689/53. Class 106 (4). [Also in Groups XV and XXV] Indicating or recording apparatus comprises an index arm with an elongated main body and snap action means arranged transversely and at least in part offset from the main body for connecting the arm to a member driven in response to changes in a variable condition. An index arm 32 of light-weight flat strip has at one end a depending pointer formation 19 for co-operation with a scale and riveted a short distance from its other end a rigid, flat, C-shaped cross-piece 34 with semi-cylindrical ends 36 for co-operation with central cylindrical portions of capstans 27 carried by the forked ends 26 of a stub 20 clamped to a driven shaft 21 and carrying a pin or bolt 30 under whose head the butt end 33 of the arm 32 is engaged. The radii of the semicylindrical parts 36 are a little greater than those of the central capstan portions 28 whose depth is a little greater than the thickness of the crosspiece 34, while the distance between the centres of the parts 36 is less than that between the centres of the capstans 27 in unassembled condition. The index arm may be used as a pointer, set arm or pen arm in control apparatus. Specification 737,057 is referred to.
Patent GB-2001022-A (GB)
Title: Improvements in or relating to helicopter rotor blades
IPC: B64D15/12
Filed: 1978-06-20
Abstract: To prevent the formation of ice upon a helicopter rotor blade and facilitate the shedding of ice formed thereon, an electrical heater is provided along the stagnation zone at the leading edge of the rotor blade, the surface 12 of the blade rearward of the stagnation zone having a coating of paste having a low adhesion for ice. In use, an area of the leading edge of the blade is maintained at a deicing temperature by the electrical heater. Ice which forms as a result of water run back from this area or which forms directly is shed by the paste. <IMAGE>
Patent GB-2035035-A (GB)
Title: Production of milk powder
IPC: A23C9/16
Filed: 1978-11-23
Abstract: A process for the preparation of instantised milk powder having a fat content in excess of 10% comprises the steps of wetting an instantisable milk powder having a fat content in excess of 10% to form agglomerates and drying said agglomerates, wherein said agglomerates are treated during their production with lecithin or a lecithin fraction in the form of an aqueous emulsion. The process is particularly applicable to full cream milk powder and results in acceptable, cold water soluble high fat milk powder.
Patent GB-2010093-A (GB)
Title: Applicator
IPC: A61M31/00
Filed: 1978-11-28
Abstract: An applicator suitable for the introduction of a medicament or ointment into a body cavity such as the vagina, comprises a piston-rod assembly 11 having a threaded lip 12 at its forward end, and a tubular member 10 having an internal tread 13 at its rearward end so that the piston-rod assembly can be unscrewed from the tubular member in order to clean the device. <IMAGE>
Patent GB-2036501-A (GB)
Title: Automatic control of television camera iris
IPC: H04N5/235
Filed: 1978-11-28
Abstract: In a system for the control of a television camera iris, with a servo which adjusts the lens aperture or iris to compensate automatically for varying scene brightness, one or more electronically-controlled switches SW are provided in the circuit of the detector which produces the electrical output signal, varying as a function of scene brightness, that controls the servo system. Such switch or switches are normally closed, but open at a predetermined video signal level corresponding to a bright highlight so as to interrupt the detector signal and prevent the servo system from responding to such highlights. The detector may comprise an "average" detector, Fig. 4, or a "peak-mean" detector, Fig. 5, supplied with DC restored or clamped video. <IMAGE>
Patent GB-2021311-A (GB)
Title: Rectangular at-quartz resonator
IPC: H03H9/19
Filed: 1978-12-22
Abstract: A rectangular AT-cut quartz resonator comprising a quartz crystal plate rotated about 35 DEG  around the X-axis, has dimensional ratios w/t and l/t respectively in the range of 3.1 to 3.7 and 14.5 to 16.2, where the length l, width w and thickness t are respectively along the X-axis, Z-axis, and Y-axis.
Patent GB-2013778-A (GB)
Title: Fuel injection system for an internal combustion engine
IPC: F02M51/08
Filed: 1979-01-22
Abstract: A throttle body having an air induction bore 16 controlled by a throttle valve 20 has an integrally formed injector jacket 48 mounting an electromagnetically actuated injector 10 upstream of the throttle valve and concentrically with the induction bore to provide a conical spray directed at the wall of the bore. The injector 10 includes an intermittently actuated needle (242), Fig. 7 (not shown), attached to the armature (230) of a solenoid (214). The needle (242) seats between inlets (250, 252) and an outlet orifice (253) of a valve housing (240) which is inserted into a fuel accumulation chamber 32 defined by the jacket 48. Seals (64, 68) are provided between the valve housing (240) and jacket 48 to seal the chamber 32 and to provide for quickly mounting or removing the injector 10. The pressure from a lower pressure pump is maintained substantially constant in the chamber 32 by a pressure regulating valve (37), Fig. 6 (not shown), between the chamber and the fuel tank. Respective injectors (8, 10), Fig. 5 (not shown), are mounted in respective induction bores (14, 16) to be connected to the manifold openings of respective engine cylinder banks. The inlets to the needle chamber may take various forms, Figs. 8 to 21 (not shown). <IMAGE>
Patent GB-2050027-A (GB)
Title: Time Clock Device
IPC: G07C1/10
Filed: 1979-05-24
Abstract: A time clock device for use with a time card 19 and coded identification card 14 includes a crystal oscillator 51 for counting seconds, a microprocessor 24 for converting the time count to units of years, months, days, hours, minutes and seconds, and a time display 20 responsive to the microprocessor. A thermal print head 30 prints time data on to the time card in response to insertion of the identification card into a card reader 26, and a memory 48 stores cumulative time information derived from this time data. <IMAGE>
Patent GB-2024065-A (GB)
Title: Runner pipe for a bottom pouring ingot mould plate
IPC: B22D35/04
Filed: 1979-06-18
Abstract: A prefabricated runner pipe has thin-walled tubes (6) of high grade refractory material arranged end-to- end and surrounded by a jacket (7) of inexpensive mineral substances mixed with a binder. The unit is made in a mould whose cross-section is preferably slightly less than that of the plate or centre runner to be lined. When the jacket is at least partially set the entire runner pipe is inserted into the plate or runner, any voids between the plate or runner and the jacket (7) being filled with sand. <IMAGE>
Patent GB-2027032-A (GB)
Title: Process for Manufacturing Fat Premixes and Agent for said Process
IPC: A23C15/14
Filed: 1979-07-12
Abstract: A process for the manufacture of fat premixes and to an agent used in the process is described. The process is characterized by emulsifying the fatty substance used for the manufacture of the premix by means of a potato protein which is previously solubilized by an alkali treatment, the emulsion thus-obtained being atomized in the presence of an atomization support. The fat premixes which are thus- obtained are useful in animal and human feeding.
Patent GB-2027389-A (GB)
Title: Overload relief mechanism for baler packer fingers
IPC: A01F15/10
Filed: 1979-07-17
Abstract: In a hay pickup baler, the packing fingers 7, 8 which sweep the harvested crop into the bale- compressing chamber are moved by a pivotal linkage which incorporates an overload relief mechanism. The fingers 7, 8 are pivotally mounted by a bearing 6 on a rotating crankshaft 5 and have upper portions 9 pivotally connected at 13 to an elongate link 37 pivotally connected at 36 to a fixed frame member 27. The relief mechanism operates in two stages. In a first stage, overload forces are absorbed by a spring 18 which is progressively compressed. If the limits of compression of the spring are reached, and overload continues to increase, the second stage is operated by shearing a pin 16 in the linkage. Once the pin has been sheared the portions 9 of the fingers 7, 8 can slide back and forth along the link 37 and thus the fingers exert no force on the crop material even though the crankshaft 5 may continue to rotate. <IMAGE>
Patent GB-2034106-A (GB)
Title: Sintered electrode for discharge lamps
IPC: H01J61/06
Filed: 1979-08-22
Abstract: A sintered electrode suitable for an electric discharge lamp is described comprising a high temperature melting metal such as tungsten, molybdenum, tantalum or mixtures thereof as a main ingredient of the sintered electrode and an electron emissive material of an alkaline earth metal, eg, barium and calcium, or compound thereof, the sintered electrode further comprising at least one oxide of a metal selected from yttrium, zirconium and aluminium, preferably in an amount from 3%-30% by weight of the sintered electrode. The invention also includes a method of manufacturing such electrodes. A number of specific examples are given.